What was the competition though? The NES pretty much single-handedly revitalized the home console market after the video game crash of 1983 by marketing it as a toy that happened to hook into a TV (R.O.B. the Robot, the light gun, all sold together), so it didn't really have any competition. Sega ended up slipping a 16-bit machine to market before Nintendo by a couple years with the Genesis, but the Genesis and SNES were directly competing for each of their respective lifespans, and both were fairly comparable, each having their own advantages in different areas.

I suppose you could compare to the Neo Geo which was far superior technically, but it was at such a high price point that it never made much of a dent in the market. That generation was pretty much defined by the SNES and Genesis.